Bone-fracture clamp



Jan. 13, 1931. w s c 1,789,060

BONE FRACTURE CLAMP Filed Sept. 29, 192B anon Wm QmM'WM Patented Jan. 13, 1931 PATENT OFFICE LEO WEIBENBAOH OF GEDARHURST, NEW YORK, ASSIGNOR TO THE KING-SOHEEREB CORPORATION 01' AMERICA, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK BONE-FRACTURE CLAMP Application filed September 29, 1928. serial No. 309,139.

My invention relates to improvements in a bone fracture clamp and consists of the combination, adaptation and arrangement of parts as will be more fully hereinafter pointed out.

The art of settin fractured bones is very ancient and many evices have been devised for carrying out the same, but all of the devices so devised either require a second operation, have a difiicult-technique or interfere with the proper circulation of blood to insure an early and correct setting of the fracture.

My device eliminates all of these difii- 5 culties and furnishes a device which does not require a second operation eliminates the necessity of rolonged working in the opened wound, oes not strip the periosteum, nor disturb the clot between the ends of the bone, nor strangle the same, and permits of very earlymassa e. Furthermore,

the technique is so simpli ed that even the inexact drillin of holes to receive the anchor screws is overcome by the complete as universal joint manipulation made possible by my structure.

The original technique in the fixation of the two bone arts in a fractured bone is simple and positive with my device and can be carried out easily and readil with the use of the X-ray to insure a per ect set and the fracture can be readjusted quickly and easil by the mere loosening of one nut permittmg the adjustment of the universal joint. Furthermore, the fixation is much greater than in any of the devices heretoore known.

One of the greatest advantages of my device over the prior art devices is in the universal join't structure which permits both vertical and horizontal adjustment of the fracture for the original setting or re-setting of a bone fracture.

Referring to the drawings, Fig.1 is a perspective of my complete c evice in use on the bone of the forearm, aid the hand and forearm are shown in dotted outline;

Fig. 2is a top plan view of my device;

Fi 3 is an end view of Fi 2 on the line 3-3 coking in from the rig t hand end.

In the drawings 4 and 5 are ortions of the bone of a forearm which is ractured at 6. In using my bone fracture clamp to hold this fracture in correct position after setting it is necessary to first make an incision in the arm to the bone. Then by means of a Stille-Sherman revolving drill or other similar drill make the necessary holes in the bone ortions 4 and 5 at 7. Anchor screws 8 having points 9 and threads 10 of narrow shoulders and lon flanges will then be screwed into the ho es 7 by means of a hollow T wrench adapted to fit over said screws 8 to engage integral nut portions 11 on said screws 8.

Clamp member 12 has a slot 13 and terminates at its inner end in an upwardly curved portion 14. A second clamp member 15 has a slot 16 and terminates at its inner end in a curved portion 17. The curved portion 14 of clamp member 12 is adapted to fit into a curved portion 18 of a universal joint member 19 and curved portion 17 of clam member 15 fits into a curved portion 20 o a second universal joint member 21. A curved binding member 22 is adapted to fit the upwardly curved member 14 and a second curved binding member 23 is adapted to fit the curved portion 17 of the clamp member 15. A circular centering plate 28 projects from member 21 and engages a similar pocket in member 19. A bo t 24 rigidl secured to bindin member 23 is threaded at its opposite on and a nut 25 is adapted to be secured thereon to rigidly lock the binding members 22 and 23 and the clamp members 12 and 15 and the universal joint members 19 and 21 together. Slots l3 and 16 of the clamp members 12 and 15 are ada ted to slide over anchor screws 8 and sai clamp members 12 and 15 are ri 'dly secured over said screws 8 by means 0 and between nuts 26 which thread on threaded portions 27 of the anchor screws 8.

It will readily be understood that after the anchor screws 8 have been mounted in the portions 4 and 5 of the fractured bone and the clamp members 12 and15 have been rigidlg secured on said screws 8 asdescribed that t e fracture 6 can then be correctly set the nut 25 tightened so as to rigidl the clamp members 12 and 15 and their conby the accepted practice and the curved portions 14 and 17 of the clamp members 12 and 15 turned and the universal joint members 19 and 21 also turned so that the bone portions 4 and 5 are held in the desired position with the fracture 6 correctly set lanlri nections in the desired position to hold anchor screws 8 and the bone portions 4 and 5 rigidly in the desired position.

claim:

1. In a bone fracture clamp the combination of anchor screws adapted to screw into and anchor in each section of a fractured bone, two clamp members slotted so as to slide over the respective sets of anchor screws and be rigidly secured thereto, a universal joint connecting said clamp members and means for locking said universal joint, anchor screws, and both sections of a fractured bone rigidly in any desired position.

2. In a bone fracture c amp the combination of anchor screws adapted to screw into and anchor in each section of a fractured bone, two clamp members slotted so as to slide over the respective sets of anchor screws and he rigidly secured thereto, a universal joint connecting said clamp members and means for locking said clamp members in any desired relation to each other whereby the said anchor screws and two or more sections of fractured bone are-rigidly held in the desired knitting position.

3. In a bone fracture clamp the combination of anchor screws adapted to screw into and anchor in each section of a fractured bone, two clamp members slotted so as to slide over the respective sets of anchor screws and be rigidly secured thereto, a universal joint connecting said clamp members and means for locking said clamp members in any desired relation to each other by locking said universal joint in a fixed position whereby the said anchor screws and the fractured bone sections are rigidly held in the desired position for healing.

4. In a bone fracture clamp the combination of screw anchoring means mounted in each portion of a fractured bone, a pair of clamp members each adapted to be rigidly secured to one of the two sets of anchor screws, a universal joint connecting said clamp members and means for rigidly locking said universal joint in the desired position whereby the said anchor screws and the fractured bone sections are rigidly held in and may be adjusted to and locked in the desired technical healing position.

5. In a bone fracture clamp the combination of screw anchoring means mounted in each portion of a fractured bone, a pair of clamp members each adapted to be rigidly secured to one of the two sets of anchor screws, a universal joint connecting said clamp members and means for rigidly locking said clamp members in any desired relation to each other whereb the said anchor screws and the fractured one sections controlled thereby are rigidly held in and may be adjusted to and 100 ed in the desired technical knitting position.

6. In a bone fracture clamp the combination of screw anchoring means mounted in each portion of a fractured bone, a pair of clamp members each adapted to be rigidly secured to one of the two sets of anchor screws, a universal joint connecting said clamp members and means for rigidly locking said clamp members in any desired relation to each other by locking said universal joint in a fixed position whereby the said anchor screws and the fractured bone sections controlled thereby are rigidly held in and may be adjusted to and locked in the desired technical healing position.

7. In a bone fracture clam the combination of anchor screws adapte to screw into and anchor in each section of a fractured bone, two clamp members slotted so as to slide over the respective sets of anchor screws and be rigidly secured thereto, and terminating at their adjoining ends in curved sections adapted to fit similarly curved portions in two universal joint members having a common circular central plane and a circular projecting ortion in one of said universal joint mem ers engaging a similar cut out in the other universal joint member and means for rigidly locking said clamp and universal joint members securely together in any desired position whereby the said anchor screws and the fractured bone sections controlled thereby are rigidly held in and may be adjusted to and locked in the desired technical healing position by the rigid lockin means.

8. In a bone racture clamp the combination of anchor screws adapted to screw into and anchor in each section of a fractured bone, two clamp members slotted so as to slide over the res ective sets of anchor screws and be rigi ly secured thereto, and terminating at their adjoining ends in curved sections adapted to fit similarly curved portions in two universal joint members having a common circular central plane and a circular projecting ortion in one of said universal joint mem ers engaging a similar cut out in the other universal joint member and means for rigidly locking said clamp and universal joint members securely together in any desired position comprising curved binding members enga 'ng said curved sections of the clamp mem ers and a bolt and nut cooperating therewith whereby the said anchor screws and the fractured bone sections controlled thereby are rigidly held in and may be adjusted to and locked in the desired technical healing position by the said clamp members and bolt and nut cooperating therewith.

9. In a bone fracture clam the combination of anchor screws adapte to screw into and anchor in each section of a fractured bone, two clamp members slotted so as to slide over the two sets of anchor screws anchored in each of the fractured bone sections, means for securing one of said sets of anchor screws rigidly to one of said clamp members and the second set of anchor screws rigidly to the second clamp. member, a universal joint means connectin said clamp members and a single means or rigidly securing said universal 'oint and clamp members connected there y in a fixed rigid position.

In testimony whereof I aflix my si ature.

LEO WEISENB CH.

the said clamp members and bolt and nut cooperating therewith.

9. In a bone fracture clam the combination of anchor screws adapted to screw into and anchor in each section of a fractured bone, two clamp members slotted so as to slide over the two sets of anchor screws anchored in each of the fractured bone sections, means for securing one of said sets of anchor screws rigidly to one of said clamp members and the second set of anchor screws rigidly to the second clamp member, a universal joint means connectin said clamp members and a single means or rigidly securing said universal 'oint and clam members connected there y in s, fixe rigid position.

In testimony whereof I afiix my si ature.

LEO WEISENB CH.

CERTIFICATE OF CORRECTION.

Patent No. l, 789, 060.

Granted January 13, 1931, to

LEO WEISENBACH.

It is hereby certified that the name of the assignee in the above numbered patent was erroneously written and printed as of America", whereas said name should have "The King-Scheerer Corporation been written and printed as The Kny-Scheerer Corporation of America as shown b y the records of asslgnments n this office; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 17th day of February, A. D. 193i.

(Seal) k M. J. Moore, Acting Commissioner of Patents.

CERTIFICATE OF CORRECTION.

Patent No. 1,789,060. Granted January 13, 1931. to

LEO WEISENBACH.

it is hereby certified that the name of the assignee in the above numbered patenl was erroneously written and printed as "The King-Schcerer Corporation of America", whereas said name should have been written and printed as The Kny-Scheerer Corporation of America, as shown by the records of assignments in this office; and that the said Letters'Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 17th day of February, A. D. 1931.

M. J. Moore, (Seal) Acting Commissioner of Patenta. 

